fix: HAWTIO_ONLINE_AUTH is required in the gateway for form mode

* The property HAWTIO_ONLINE_AUTH determine which auth mode is being used.
  For k8s, 'form' must be used and this must be carried through to the
  gateway since there are URLs called by the gateway that use OpenShift API
  if the value of the var is not 'form'

deploy/k8s/cluster/patch-deployment.yml

@@ -13,3 +13,7 @@ spec:
               value: form
             - name: HAWTIO_ONLINE_MODE
               value: cluster
+        - name: hawtio-online-gateway
+          env:
+            - name: HAWTIO_ONLINE_AUTH
+              value: form

deploy/k8s/namespace/patch-deployment.yml

@@ -19,3 +19,7 @@ spec:
               valueFrom:
                 fieldRef:
                   fieldPath: metadata.namespace
+        - name: hawtio-online-gateway
+          env:
+            - name: HAWTIO_ONLINE_AUTH
+              value: form